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Spectrophotometric Analysis of Crown Discoloration Induced by Various MTA Based Materials

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ÀÓÀ¯¶õ ( Lim Yu-Ran ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
ÃÖ³²±â ( Choi Nam-Ki ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±èÀçȯ ( Kim Jae-Hwan ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¼±¹Ì ( Kim Seon-Mi ) - Àü³²´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

Mineral trioxide aggreagate´Â Ä¡¼ö Ä¡·áÁ¦·Î¼­ ¸¹ÀÌ »ç¿ëµÇ°í ÀÖ´Â Àç·áÁß ÇϳªÀÌ´Ù. ±× Áß °¡Àå ³Î¸® ¾²ÀÌ°í ÀÖ´Â Proroot white MTA¢ç´Â Ä¡¾Æ º¯»öÀ» ÀÏÀ¸Å²´Ù´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. À̹ø ¿¬±¸¿¡¼­´Â MTA ±â¹Ý Àç·áµéÀÎ Proroot wMTA¢ç, Biodentine¢ç, Endocem¢ç, RetroMTA¢ç¸¦ Ä¡¼ö°­¿¡ °¢°¢ ä¿ö³Ö¾î ½Ã°£¿¡ µû¸¥ Ä¡°æºÎÀÇ º¯»öÀ» ºñ±³ÇÏ°íÀÚ ÇÏ¿´´Ù. ±³Á¤ÀûÀÎ ÀÌÀ¯·Î ¹ßÄ¡µÈ 75°³ÀÇ ¼Ò±¸Ä¡¸¦ »ç¿ëÇÏ¿© ¹«ÀÛÀ§·Î 4°³ÀÇ ½ÇÇ豺(n = 60)°ú ÇÑ °³ÀÇ ´ëÁ¶±º(n = 15)À¸·Î ³ª´©¾ú´Ù. Ä¡¾Æ´Â CEJ ÇϹæ 2 mm·Î ¼öÆòÀý´Ü ÇÏ¿´´Ù. °¢°¢ÀÇ Àç·áµéÀ» Á¦Á¶»çÀÇ Áö½Ã¿¡ µû¶ó ÁغñÇÑ ÈÄ Ä¡¼ö°­¿¡ ä¿ö³Ö°í ÀÔ±¸¸¦ ·¹ÁøÀ» ÀÌ¿ëÇÏ¿© ºÀÀÎÇÏ¿´´Ù. Ä¡¾Æ »öÁ¶ ÃøÁ¤Àº ±¹Á¦Á¶¸íÀ§¿øȸ(Commission International de I¡¯Eclairage, CIE)ÀÇ CIE L*a*b* systemÀ» »ç¿ëÇÏ¿´´Ù. »öÁ¶´Â ºÐ±¤ ±¤µµ°è¸¦ »ç¿ëÇÏ¿© Àç·á¸¦ ³Ö±â Àü, Àç·á¸¦ ³Ö°í 1ÀÏ, 1ÁÖ, 2ÁÖ, 4ÁÖ, 8ÁÖ, 12ÁÖ, 16ÁÖ ÈÄ·Î ÃÑ 8¹ø ÃøÁ¤ÇÏ¿´´Ù. ÀÌ¿ø º¯·® ºÐ»êºÐ¼®(Two way repeated ANOVA)À» »ç¿ëÇÏ¿© ½Ã°£¿¡ µû¸¥ CIE L*, a*, b*¿Í ¥ÄE°ªÀ» ºñ±³ Æò°¡ÇÏ¿´°í ½ÇÇ豺°ú ´ëÁ¶±º°úÀÇ Åë°èÀû À¯ÀǼº°ú »óÈ£°ü°è´Â º»Æä·Î´Ï °ËÁ¤À¸·Î »çÈÄ °ËÁ¤ÇÏ¿© p °ªÀÌ 0.05ÀÌÇÏÀÏ ¶§ Åë°èÇÐÀûÀ¸·Î À¯ÀÇÇÏ´Ù°í °£ÁÖÇÏ¿´´Ù. Proroot wMTA¢ç´Â ½Ã°£¿¡ µû¶ó °è¼ÓÀûÀÎ L*°ªÀÇ °¨¼Ò¸¦ º¸¿´°í, Endocem¢çÀº Àç·á¸¦ ³ÖÀº Á÷ ÈÄ À°¾ÈÀ¸·Î ÀÎÁö ºÒ°¡´ÉÇÑ ¾à°£ÀÇ È¸»öÁ¶ º¯»öÀ» º¸¿´À¸¸ç, Biodentine¢ç°ú RetroMTA¢ç´Â »ó´ëÀûÀ¸·Î ´Ù¸¥ Àç·áº¸´Ù »ö ¾ÈÁ¤¼ºÀ» º¸¿´´Ù. °á·ÐÀûÀ¸·Î, ¹æ»ç¼± ºÒÅõ°ú¼º ¹°Áú·Î¼­ »êÈ­ ºñ½º¹«½º°¡ Æ÷ÇÔµÈ Proroot wMTA¢ç¿Í Endocem¢çÀº Ä¡°ü º¯»öÀ» º¸ÀÎ ¹Ý¸é, ¹æ»ç¼± ºÒÅõ°ú¼º ¹°Áú·Î¼­ »êÈ­ Áö¸£ÄÚ´½ÀÌ Æ÷ÇÔµÈ Biodentine¢ç°ú RetroMTA¢ç´Â ½Ã°£¿¡ µû¸¥ À¯ÀÇÇÑ »ö º¯È­¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù.

Mineral trioxide aggregate have been used for many years as a pulp therapy material. The most widely used product, Proroot white MTA¢ç has a major drawback that it causes tooth discoloration. This study assessed discoloration of crown when various MTA-based materials were placed in the coronal aspect of the root canal. Seventy-five single-rooted, unrestored premolar teeth were selected. The teeth were randomly assigned to four experimental groups, each of Biodentine¢ç, Proroot wMTA¢ç, Endocem¢ç, RetroMTA¢ç and one negative control groups. Color measurements were utilized by the Commission International de I¡¯Eclairage¡¯s L*a*b* system with spectrophotometer. The color was assessed eight times : initial, 1 day, 1 week, 2 weeks, 4 weeks, 8 weeks, 12 weeks, and 16 weeks after the placement. Statistical analysis was performed using the 2-way repeated analysis of variance and Bonferroni¡¯s method with p < 0.05. Proroot wMTA¢ç induced significant decreases in L* values during experiment period. Tooth samples from the Endocem¢ç group presented indistinct grayish color changes. The Biodentine¢ç and RetroMTA¢ç showed color stability. Consequently, while Proroot wMTA¢ç and Endocem¢ç that contain bismuth oxide as a radiopacifier showed tooth discoloration, displayed no sign of discoloration Biodentine¢ç and RetroMTA¢ç that contain zirconium oxide as a radiopacifier.

Å°¿öµå

Ä¡°ü º¯»ö ; ºÐ±¤±¤µµ°è ; »êÈ­ ºñ½º¹«½º ; »êÈ­ Áö¸£ÄÚ´½ ; ¹æ»ç¼± ºÒÅõ°ú¼º
Crown discoloration ;Spectrophotometer ;Mineral trioxide aggregate ;Bismuth oxide ;Zirconium oxide ;Radiopacifier

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